I change phone, how do I keep my Skred profile?

Using the device migration feature in the Account menu, you can migrate your account to a newer device where Skred is installed too, even if an empty profile.

Both profiles will be swiped of devices.

Also, for iOS, Apple allows a full backup of the phone provided you do it via iTunes and choose an encrypted backup or iCloud using the advanced secure backup. When restoring to the new device, Skred will find all of its information. This is made possible because the encrypted backup will also embed the security keys generated by Skred.